|SIM Series||SIM928 ... from $1195|
|SIM928 — Rechargeable isolated voltage source|
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|SIM928 Isolated Voltage Source
|The SIM928 Isolated Voltage Source is ideal for applications where ultra-clean DC voltage is required. Voltage can be set between ±20 VDC with millivolt resolution, and the source can drive up to ±10 mA. The output circuit is optically isolated from all earth-referenced charging circuitry, providing maximum flexibility and noise immunity. The system can float to ±40 V, and the output is short-circuit protected.|
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SIM928 Rechargeable Isolated Voltage Source
The SIM928 Isolated Voltage Source is ideal for applications where ultra-clean DC voltage is required. Voltage can be set between ±20 VDC with millivolt resolution, and the source can drive up to ±10 mA. The output circuit is optically isolated from all earth-referenced charging circuitry, providing maximum flexibility and noise immunity. The system can float to ±40 V, and the output is short-circuit protected.
At the heart of the SIM928 are two independent nickel-metal-hydride rechargeable batteries, each providing up to 12 hours of operation under full load conditions. When a battery is nearly depleted, the SIM928 automatically switches in a second battery. The switchover between batteries is virtually glitch-free, giving you uninterrupted power around the clock. The depleted battery is automatically charged to capacity in about 5 hours. The batteries are guaranteed for 1000 charging cycles, and SRS offers replacement battery sets.
In applications that occur over long time intervals, starting with a fully charged battery may be desirable. A battery charge override feature allows you to manually switch in the fully charged battery (assuming it is in ready state) at any time.
Banana binding posts are provided for the + terminal, - terminal and chassis ground.
|SIM928 Rechargeable Isolated Voltage Source|
|Output range||±20 V, 1 mV resolution|
|Max. output current||±10 mA|
|Floating output||±40 V (common mode to ground)|
|Noise||10 µVrms (1 kHz bandwidth)|
|Current limit||15 mA|
|Number of batteries||2 (1 operating, 1 charging/standby)|
|Type||Nickel metal hydride|
|Charge time||5 hrs.|
|Discharge time||12 hrs. (10 mA load)|
|Lifetime||>1000 charge cycles, 2 yr. shelf life|
|Battery switching||Automatically switches batteries when active battery is fully discharged.|
|Switchover glitch||<1 mV for <1 ms|
|Battery charge override||Allows manual switching of batteries. Triggered when front-panel button is held for 5 seconds or more. Only armed when standby battery is in ready state.|
|Operating temperature||0 °C to 40 °C, non-condensing|
|Interface||Serial via SIM interface|
|Connectors||Banana binding posts (+ terminal, - terminal, and chassis ground) DB15 (male) SIM interface|
|Power||Power supplied by the SIM900 Mainframe, or optionally by a user-provided DC power supply (-15 V, +24 V and +5 V)|
|Dimensions||1.5" × 3.6" × 7.0" (WHL)|
|Warranty||One year parts and labor on defects in materials and workmanship|